103210022221 has 4 divisors (see below), whose sum is σ = 103211511100. Its totient is φ = 103208533344.

The previous prime is 103210022213. The next prime is 103210022261. The reversal of 103210022221 is 122220012301.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 92239764100 + 10970258121 = 303710^2 + 104739^2 .

It is a cyclic number.

It is not a de Polignac number, because 103210022221 - 2³ = 103210022213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103210022195 and 103210022204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103210022261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635106 + ... + 780883.

It is an arithmetic number, because the mean of its divisors is an integer number (25802877775).

Almost surely, 2^103210022221 is an apocalyptic number.

It is an amenable number.

103210022221 is a deficient number, since it is larger than the sum of its proper divisors (1488879).

103210022221 is an equidigital number, since it uses as much as digits as its factorization.

103210022221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1488878.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 103210022221 its reverse (122220012301), we get a palindrome (225430034522).

The spelling of 103210022221 in words is "one hundred three billion, two hundred ten million, twenty-two thousand, two hundred twenty-one".